# A034686 (b-file synthesized from sequence entry) 1 1 2 36 3 384 4 1575 5 34992 6 139968 7 1886976 8 78962688 9 128894976 10 1269789696 11 99474697728 12 164886478848 13 7424647888896 14 96979764768768 15 189716738899968 16 1997998849179648 17 19866499767926784 18 289288492884688896 19 2687986397944479744